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Which molecules help control movement of substances through cell membranes? carbohydrates ATP DNA proteins

1 Answer

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Answer;

-Proteins

Step-by-step explanation;

-Proteins embedded in the cell membrane help control which substances exit and enter the cell. Channel proteins allow molecules to move from high concentration to low concentration.

-Cell is a fabulous machine that tightly controls what enters and exits. Part of how it does this is through a specialized cell membrane that only lets very small, hydrophobic molecules pass directly through it. Other molecules however, need a helper to get through the membrane, these molecules are called protein carriers.

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